Refrigerating apparatus



. Aug. 11, 1931 J KENG 1,81,133

REFRIGERATING APPARATUS Filed Dec. 31, 1927 2 Sheets-Sheet l HI 0 o o m 3 5 DDDDDD Q i i----------17 '0 D D D D D a A g. 11, 1931. A J. G. KING 1,818,139

REFRI GERATING APPARATUS Filed Dec; 51, 1927 2 Sheets-Sheet '2 l atented sag. ll

JEESE G KING-3 F DAYTON, UEEG, ASSIGNOB, BY MESNE ASSIGNMENTS, T0 FRIGID- AIBE CQRPORATIGN, A CQBPDBA'I'ION 0F DELAWARE nnrntennn'rine snares Application filed December 31,.19287. Serial No. 243,989.

This invention relates to refrigerating apparatus and particularly to devices for freezing small blocks of ice for table use.

@ne of the objects of the invention is to I provide an improved refrigerating a paratus in which a large quantity of small locks of ice may be uickl frozen.

Another 0 ject is to provide a compact and efiicient apparatus which has a large freezing capacity.

- invention is clearly shown.

In the drawings:

Fig. l is a view partl in section and partly in elevation of a refrigerating cabinet constructed in accordance with the invention;

Fig. 2 is a section of the cabinet on the line,2-2 of Fig. l; and

Fig. 3 is a section on the line 3-3 of Fig. 2. ln accordance with my invention it provide a refrigerating cabinet generally denoted by which may he of any suitable or .ltnown construction having a large opening ll which may he closed by a door 12. Within the cabinet are disposed three or more refrigerating elements or evaporators each of which preferably includes a header 1? forming a reservoid for liquid refrigerant and a number of loops oi conduit 13- for circulating refrigerant' about one or more freezing compartments The freezing compartments preferahly consist of a metal shield or pocket in which is inserted one or more containers 15 of any known construction for freezing ice in small hloclrs or cuhes for table use, such well known in the art. In the example e drawings six individual compart; c holding a container or tray 15 at i l in each evaporator. 'lhe loops iii are each asymmetrical with resp central vertical plane of the compartments, and alternate loops are reversed along the length of the header to provide two sets of ducts l8 adjacent the freezing compartment and two sets of ducts at a distance from the compartment.

The purpose of this arrangement is to lacilitate the assembling of compartments in intimate thermal contact with the ducts 16. Under quantity production conditions it is dificult to manufacture a large number of compartments and loops of pipe each of sufficiently constant width to fit snugly together on both sides of the compartment. And it after a number of loops are assembled they do not fit the compartments, it is dificult to compress or expand them to fit exactly. By making the loopswider than the compartments and alternating them along the length of the header, as shown in Figs. 1 and 2, it is a comparatively simple matter to get all of the loops in intimate thermal contact with looth sides of the compartment for it is a relatively easy matter to displace a whole loop 13 so as to bring its ducts it; in contact with the compartment. Preferably the ducts it; are soldered to the sides the compartment.

The evaporators are assembled in the cabinet in staggered relation so that the projecting ducts l? on one evaporator lie between the ducts of its adjacent evaporator. Prelerahl the loops 13 are placed in groups of two as indicated in if ig. 3 and the groups are separated by spaces suficiently wide to receive a duct 1?. In this case when the evaporetors are assembled, as shown in Figs. 2

- and 3, the ducts 1! projecting from one evaporator are placed in contact with compartments of the adjacent evaporator. In this manner each of the evaporators can be economically formed refrigerant ducts in intimate contact with hoth sides of its freezing compartment the ducts oi one evaporator which projects it are incontact with the adjacent evaporator.

It will be noted that the co is flanked or surrounds .oy the two side evaporators 2i. @onsequer -j, the heat leakage thru the side walls of J cabinet is talren up substantially entirely 3- 7 the side evaporators, leaving the ca aeity of the central evaporator available tor freezing trel evaporator net by individual cradles, each including a till pair of straps 30 secured to longitudinal spacing members 31, the cradles being supported by being bolted to hangers 32. The hangers are in turn secured to supporting members 33 which may be secured together and suitably spaced by longitudinal spacers 34:. The cradles for each individual evaporator are staggered as shown best in Fig. 2, so as to ofiset one evaporator with respect to the others in order to bring the loops of the conduits 17 between the loops of the adjacent evaporators. The supports 33, longitudinal spacers a4 and hangers 32 are all secured together to form a unita frame which may be supported in the ca inet by resting upon the top edge of the side walls 35 and may be secured thereto by any suitable means, such as screws 36.

After this frame has been placed in the cabinet in the manner described. the top wall 37 may be placed on the side walls of the cabinet and secured in the usual manner.

Refrigerant is circulated thru each of the evaporators in parallel thru inlet connections 38 and outlet connections 39 and is maintained at a constant level by a suitable float valve. The valve and circulating apparatus may be, for example, as shown in the patent to Osborn, No. 1,556,708, October 13, 1925.

Below the evaporators are placed a number of drawers or containers 40 in which the ice frozen in the small containers 15 may be stored. The evaporators and the storage drawers occupy substantially the entire space within the cabinet. Preferably each of the storage drawers is surrounded by a shield 41 for protecting the contents of the drawers from water dripping from the evaporators during periods of defrosting.

While the form of embodiment of the present invention as herein disclosed, constitutes a referred form, it is to be understood that 0t er forms might be adopted, all coming within the scope of the claims which follow.

What is claimed. is as follows:

1. Refrigerating apparatus comprising combination, a cabinet and a plurality of refrigerating elements disposed side by side in the cabinet; each of the elements including freezing compartment, a plurality of ducts for circulating refrigerant in intimate thermal contact with the compartment and a plurality of ducts disposed remote from the them, the remote ducts in one eleplaced between the ducts of the nent which are in intimate con tact with the compartment.

2. Refrigerating apparatus comprising in combination, a cabinet a pluran frigerating elements disposed side by side in the cabinet; each of the elements including a freezing compartment, a plurality of ducts for circulating refrigerant in intimate thermal contact with the compartment and a plurality of ducts disposed remote from the compartment, the remote ducts in one element being placed in contact with the com partment of an adjacent element.

4 3. Refrigerating apparatus comprlslng in combination, a cabinet and a plurality of refrigerating elements disposed side by side in the cabinet; each of the'elements including a freezing. compartment and a plurality of loops of refrigerant conduit, said loops being wider than the compartment and each loop having a duct in contact with the side of the compartment and a duct remote from the other side of the compartment said remote ducts of one element being placed between those ducts of the adjacent element which are in contact with the compartment thereof.

l. Refrigerating apparatus comprising in combination, a cabinet and a plurality of refrigerating elements disposed side by side in the cabinet; each element including a freezing compartment and a plurality of loops of refrigerant conduit, said loops being wider than the compartment and each of the loops having a duct in intimate contact with one side of the compartment and a duct spaced at an interval from the other side of the compartment, the contacting ducts and the remote ducts being alternated along the length of the compartment and the remote ducts of one compartment being placed between the contacting ducts of an adjacent compartment.

5. Refrigerating apparatus comprising in combination, a cabinet and a plurality of refrigerating elements disposed side by side in the cabinet; each of the elements including a freezing compartment and a plurality of ducts for circulating refrigerant spaced along the compartment, some of the ducts of one element being placed in heat exchange relation with the compartment of the adjacent element.

6. Refrigerating apparatus comprising in combination a cabinet and a plurality of re frigerating elements disposed side by side in the cabinet; each of the elements including a freezing compartment and each including a plurality of ducts for circulating refrigerant spaced from one another lengthwise along its compartment, certain ducts of one element being in contact with the compartment of the'adjacent element.

7. Refrigerating apparatus comprising in combination, a cabinet and a plurality of similar refrigerating elements disposed side by side in the cabinet; each of the elements including a freezing compartm nt and each including a plurality of ducts LOT circulating refrigerant spaced from one another lengthwise along its compartments, the ele ments bem assembled in the cabinet in stag-- gered relation and with certain ducts of one element in heat exchange relation with the compartment of its adjacent element.

8; Refrigerating apparatus comprisin in combination, a cabinet and a plurality 0 refrlgerating elements disposed side by side in the cabinet; each of the elements including a freezing compartment, a plurality of ducts for circulating refrigerant in intimate thermal contact with the compartment and a plurality of ducts disposed remote from the compartment, the remote ducts in one element being placed in heat exchange relation with the compartment of the adjacent element.

9. Refrigerating apparatus comprising in combination, a cabinet and a plurality of re frigerating elements disposed side by side in the cabinet; each'of the elements including duct means forming a freezing enclosure, part of the duct means of one element being so disposed as to cooperate with the duct means of the adjacent element in forming the freezing enclosure of said adjacent element.

10. Refrigerating apparatus comprising in combination, a cabinet and a plurality of reirigerating elements disposed side by side in thecabinet; each of the elements including duct means forming a freezing enclosure, part of the duct means of one element being interspersed between the duct means of the adjacent element and cooperating with the duct means of the adjacent element to form the freezing enclosure thereof,

- i1. Refrigerating apparatus comprisin in combination, a cabinet and a pluralityo refrigerating elements in the cabinet; each of the elements including disposed side by side signature.

JESSE G. KING.

a freezing compartment, duct loops surrounding the compartment and haying portions in contact with the compartment, portions of the loops of one element being interspersed between those portions oi the loops of the adjacent element which are in contact with the compartment associated with said adjacent elements, g a 12. Refrigerating apparatus comprising in combination, acabinet and a pluralityioi refrigerating elements disposed side by side in the cabinet; each ing a freezing compartment, duct loops surrounding the compartment and having portions in contact with the compartment, portions of the loops of one element being in heat exchange relation with the compartment of the adjacent element.

l3. Refrigerating apparatus comprising in combination a cabinet and a plurality of refrigerating elements disposed side by side in the cabinet; each of said elements including a freezing compartment and each including a plurality of ducts for circulating reirig'erant, certain ducts of one of said eleof the elements includ- 

